The official "tube bending" thread
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  1. #1
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    Default The official "tube bending" thread

    Here at Baileigh, we deal with tube bending applications on a daily basis and would love to get a little more involved on the board and help out in our area of expertise.

    I will start this tube bending thread. If you have any questions about rotary draw benders, bending tube or pipe, application issues, wrinkling, what wall thickness will bend or not, wall thickness vs. center line Radius or what material will bend. Pretty much anything related to tube bending......ask away.

    I will also post odd applications that come across my desk from time to time.

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    Default


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    Serpentine bends require special tooling.






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    Stainless steel schedule 40 pipe bent to ADA specifications


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    CDRA or (counter die roller assemblies) work well with aluminum tube and pipe applications. They prevent galling and scratching while still providing outside support on the bend.

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    This channel track bending application required a 3 piece delrin mandrel insert to prevent the sides from caving in. It was a tough application but our team was able to engineer a rather inexpensive solution to a super expensive application.











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    Nice job on the bends. This should be an interesting and educational thread. Thanks for posting it.

    Big B

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    I would have expected the overhead track to be done on the ring roller. That looks like a large radii for a mandrel bender?

    Charles

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    This application was done on a large 14" CLR die (28" diameter) on an RDB-325 rotary draw bender.

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    I HATE bending... Anything from brake lines on up. That is an art form I haven't come even close to being good at. I find it to be the most fristrating thing I have tried to learn. The pics are great!

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    Quote Originally Posted by kustomizingkid View Post
    I HATE bending... Anything from brake lines on up. That is an art form I haven't come even close to being good at. I find it to be the most fristrating thing I have tried to learn. The pics are great!
    Bending round tube, pipe and square tubing is pretty simple with the correct tooling. Extrusions, oval shaped material and angle iron are the ones that keep me up at night. They are way more challenging.

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    Fusion Metalworks in Florida has absolutely mastered their RDB-350 tube and pipe bender. Mass producing handrail daily using a 20 foot indexing table


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    I buy 6061 aluminum .062 wall 2 1/4 od 180* "u" bends with a 3" center line radius. These bends are wrinkle free and have no crush. Do you have anything that can do this?

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    Quote Originally Posted by moonlight machine View Post
    I buy 6061 aluminum .062 wall 2 1/4 od 180* "u" bends with a 3" center line radius. These bends are wrinkle free and have no crush. Do you have anything that can do this?
    Yes, this is a mandrel bending application. we have a full line of mandrel benders that can bend super thin material to super tight radii with no deformation.

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    What sort of money are we talking for a machine to do these bends?

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    Quote Originally Posted by moonlight machine View Post
    What sort of money are we talking for a machine to do these bends?
    To get set up with a mandrel bender, you would be in the 30-45k range depending on what tooling you need.

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    I'll just keep on buying them!

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    Quote Originally Posted by moonlight machine View Post
    I'll just keep on buying them!
    Yeah...unless you are in the business of making and selling mandrel bends, or mass producing a product that requires a mandrel bender, most people will just buy the pre bend mandrel bends.

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    I bent up some small, thin walled brass for a customer in the showroom today.




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